PurgEye ® Dew Point Sensor
The presence of moisture on the joint surface can create porosity in the weld metal .
It is therefore important , therefore that the dew point is monitored so that welders are made aware when moisture is likely to be present .
Water can form as moisture on metal surfaces while welding and it is clearly important to be able to measure “ Dew Point ” when and while welding lengthy critical joints as conditions can change during the welding process .
Using the “ PurgEye ® Dew Point Sensor ” while welding , is the easiest method for indicating when water will condense on solid surfaces in the welding zone .
Writing this another way :
By using the “ PurgEye ® Dew Point Sensor ” You will have an important prediction instrument of when water will form on metal surfaces in the welding environment .
HOW DOES WATER MOISTURE ON METAL AFFECT THE QUALITY OF THE WELD JOINT ? Under arc conditions , water is broken down into hydrogen and oxygen in atomic form which when present in weld metal , cause porosity and are known to create cracking in the weld joint .
WHAT IS ‘ DEW ’? Dew is expressed as drops of liquid water that condense from the atmosphere and onto any solid surface like metal .
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